#!/usr/bin/perl # b2m.pl - Script to convert a Babyl file to an mbox file # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 # USA. # Maintained by Jonathan Kamens . # Requires CPAN modules: MailTools (for Mail::Address), TimeDate (for # Date::Parse). use warnings; use strict; use File::Basename; use Getopt::Long; use Mail::Address; use Date::Parse; my($whoami) = basename $0; my($version) = '$Revision: 1.5.4.1 $'; my($usage) = "Usage: $whoami [--help] [--version] [--[no]full-headers] [Babyl-file] \tBy default, full headers are printed.\n"; my($opt_help, $opt_version); my($opt_full_headers) = 1; die $usage if (! GetOptions( 'help' => \$opt_help, 'version' => \$opt_version, 'full-headers!' => \$opt_full_headers, )); if ($opt_help) { print $usage; exit; } elsif ($opt_version) { print "$whoami version: $version\n"; exit; } die $usage if (@ARGV > 1); $/ = "\n\037"; if (<> !~ /^BABYL OPTIONS:/) { die "$whoami: $ARGV is not a Babyl file\n$usage"; } while (<>) { my($msg_num) = $. - 1; my($labels, $pruned, $full_header, $header); my($from_line, $from_addr); my($time); # This will strip the initial form feed, any whitespace that may # be following it, and then a newline s/^\s+//; # This will strip the ^_ off of the end of the message s/\037$//; if (! s/(.*)\n//) { malformatted: warn "$whoami: message $msg_num in $ARGV is malformatted\n"; next; } $labels = $1; # Strip the integer indicating whether the header is pruned $labels =~ s/^(\d+)[,\s]*//; $pruned = $1; s/(?:((?:.+\n)+)\n*)?\*\*\* EOOH \*\*\*\n+// || goto malformatted; $full_header = $1; if (s/((?:.+\n)+)\n+//) { $header = $1; } else { # Message has no body $header = $_; $_ = ''; } # "$pruned eq '0'" is different from "! $pruned". We want to make # sure that we found a valid label line which explicitly indicated # that the header was not pruned. if ((! $full_header) || ($pruned eq '0')) { $full_header = $header; } # End message with two newlines (some mbox parsers require a blank # line before the next "From " line). s/\s+$/\n\n/; # Quote "^From " s/(^|\n)From /$1>From /g; # Strip extra commas and whitespace from the end $labels =~ s/[,\s]+$//; # Now collapse extra commas and whitespace in the remaining label string $labels =~ s/[,\s]+/, /g; foreach my $rmail_header qw(summary-line x-coding-system) { $full_header =~ s/(^|\n)$rmail_header:.*\n/$1/i; } if ($full_header =~ s/(^|\n)mail-from:\s*(From .*)\n/$1/i) { ($from_line = $2) =~ s/\s*$/\n/; } else { foreach my $addr_header qw(return-path from really-from sender) { if ($full_header =~ /(?:^|\n)$addr_header:\s*(.*\n(?:\B.*\n)*)/i) { my($addr) = Mail::Address->parse($1); $from_addr = $addr->address($addr); last; } } if (! $from_addr) { $from_addr = "Babyl_to_mail_by_$whoami\@localhost"; } if ($full_header =~ /(?:^|\n)date:\s*(\S.*\S)/i) { $time = str2time($1); } if (! $time) { # No Date header or we failed to parse it $time = time; } $from_line = "From " . $from_addr . " " . localtime($time) . "\n"; } print($from_line, ($opt_full_headers ? $full_header : $header), ($labels ? "X-Babyl-Labels: $labels\n" : ""), "\n", $_) || die "$whoami: error writing to stdout: $!\n"; } close(STDOUT) || die "$whoami: Error closing stdout: $!\n";